An exam that monitors the function of the heart. Radioactive Technetium is injected into a vein. Pictures are then taken while a computer measures how well the heart is functioning.

A test in which a radioactive tracer is injected into the bloodstream and scanned as it passes through the heart. A computer then calculates the size and shape of a patient's ventricles based on the amount and distribution of radiation emitted from them.

MUGA stands for multiple gated acquisition. It is a type of heart scan that shows how well the heart is pumping blood around the body. It uses very small amounts of radioactive tracers to show up the main chambers and blood vessels of your heart. You have an injection first and then the scan with a gamma camera.

The Muga is a river in Catalonia which rises in the Alberes mountains of the eastern Pyrenees and enters the sea at the Gulf of Roses.